(Central Processing Unit) The CPU is the "brain" of the computer, all instruccions are carried on the CPU. It has 3 parts:
Control Unit
Arithmetic Logic Unit ( ALU)
Immediate Access Store (IAS)
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The speed of a computer is measured in Hertz (Hz). The speed is measured corresponded to the number of actions the CPU can do every second.
Memory There are two types of memories, internal and external. Internal memory has also two types RAM and ROM.RAM ( Random Access Memory) Random Access Memory stores temporally instructions that the computer is running or data that is processing. It is Volatile, this means that when the power is turn off, the stored data in the RAM is lost.When you run a computer RAM is storing the following data:
The operating system software
The application software currently being used
Any data that is being processed
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ROM (Read Only Memory) Read Only Memory is a permanent memory, which most computer use to hold a small software called BIOS (Basic Input Output System). When the software is turn on, this software checks the computer hardware and then loads the operating system this one has. This is a non-volatile software, even if the power is turned on the data won't be lost.
CPU
(Central Processing Unit)The CPU is the "brain" of the computer, all instruccions are carried on the CPU.
It has 3 parts:
- Control Unit
- Arithmetic Logic Unit ( ALU)
- Immediate Access Store (IAS)
www.build-your-own-computer.net
The speed of a computer is measured in Hertz (Hz). The speed is measured corresponded to the number of actions the CPU can do every second.Memory
There are two types of memories, internal and external. Internal memory has also two types RAM and ROM.RAM ( Random Access Memory)
Random Access Memory stores temporally instructions that the computer is running or data that is processing. It is Volatile, this means that when the power is turn off, the stored data in the RAM is lost.When you run a computer RAM is storing the following data:
ROM (Read Only Memory)
Read Only Memory is a permanent memory, which most computer use to hold a small software called BIOS (Basic Input Output System). When the software is turn on, this software checks the computer hardware and then loads the operating system this one has. This is a non-volatile software, even if the power is turned on the data won't be lost.